He is talking about novel writing, but if you have any interest in writing at all you should read it. It can apply to anyone.
I am testing out a new tool to post a bit that I came across that I liked a lot.
Many times I find myself having characters notice things or say things they really shouldn't notice or say. The problem is one of two things. Either there is no way they should/could know what they are saying, or they shouldn't really notice what they are noticing. It is such a part of their everyday life that it should now go unnoticed.
Anyway, Jeff says it better than I do.